The flowers and design are typical of Clichy, rather than any other French factory. The Clichy book has 3 or 4 pages of Clichy flower designs, including very similar ones. It covers Clichy items in general, but there is quite a lot about Clichy paperweights. It is in French: La Cristallerie De Clichy - Une Prestigieuse Manufacture Du Xixe Siècle and costs over £50.00....
I might well have gone to pick it up, as I like trips to France!